//定制请求的实例

//导入axios  npm install axios
import axios from 'axios';
import { ElMessage } from 'element-plus'
//定义一个变量,记录公共的前缀  ,  baseURL
const baseURL = '/api';
const instance = axios.create({baseURL})

//通过请求拦截器,添加token
import{useTokenStore} from "@/stores/token.js";
instance.interceptors.request.use(
    (config)=> {
        const tokenStore=useTokenStore();
        if(tokenStore.token){
            config.headers['Authorization'] = tokenStore.token;
        }
        return config;
    },
(err)=>{
        Promise.reject(err);
}
)
//添加响应拦截器
import router from "@/router";
instance.interceptors.response.use(
    result=>{
        if(result.data.code===0) {
            return result.data;
        }
        ElMessage.error(result.data.msg?result.data.msg:'服务异常');
        //将异步操作的状态转换为失败
        return Promise.reject(result.data)
    },
    err=>{
        if(err.response.status===401){
            ElMessage.error('服务异常');
            router.push('/login');
        }else {
            ElMessage.error('服务异常');
        }
        return Promise.reject(err);//异步的状态转化成失败的状态
    }
)

export default instance;